The outage at a control facility that directs planes around Denver International Airport on Monday afternoon affected communications, not radar, the FAA's head of air traffic control, Frank McIntosh, said during a House hearing Thursday. This communications failure follows two high-profile outages of radar and communications in the past 2 1/2 weeks at a facility in Philadelphia that directs planes in and out of the Newark, New Jersey, airport. สล็อต เว็บตรง